A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture

Rehman Akbar; Rana A. Shaheen; Timo Rahkonen; Cheung Tze; Kari Stadius; Aarno Parssinen

doi:10.1109/ESSCIRC53450.2021.9567865

A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture

Rehman Akbar, Rana A. Shaheen, Timo Rahkonen, Cheung Tze, Kari Stadius, Aarno Parssinen

University of Oulu

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 Citations (Scopus)

146 Downloads (Pure)

Abstract

Current millimetre-wave (mmW) 5G NR standard supports multiple bands at 24.5/28/37/39/43/47GHz for communications. To cover several bands of the 5G NR and reaching lower end of unlicensed 60GHz band for 802.11ad, this work presents a wideband phased array front-end with LNA and two VGAs for scalar-only weighting function, and a wideband combining network of each signal weight in mmW domain for beamforming. In this work, two array elements are combined in two cascaded stages for extremely wideband operation. Combined load resonances are distributed and adjusted appropriately in each of the combining stages to achieve a flat response over the band of 38.5-60.5GHz. A single array path achieves rms gain of 8.5-12.5dB, noise figure of 6.2-8.1dB, and IP1dB of -33 to - 26dBm. The measurements show ≈ 6dB of array gain when the two phased array elements are combined in phase with +0.6dB to -0.4dB maximum gain error in the mmW VGAs. The prototype is implemented using 28nm CMOS.

Original language	English
Title of host publication	ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings
Publisher	IEEE
Pages	199-202
Number of pages	4
ISBN (Electronic)	978-1-6654-3747-9
DOIs	https://doi.org/10.1109/ESSCIRC53450.2021.9567865
Publication status	Published - 13 Sept 2021
MoE publication type	A4 Conference publication
Event	European Solid-State Circuits Conference - Virtual, Online, France Duration: 6 Sept 2021 → 9 Sept 2021 Conference number: 47

Conference

Conference	European Solid-State Circuits Conference
Abbreviated title	ESSCIRC
Country/Territory	France
City	Virtual, Online
Period	06/09/2021 → 09/09/2021

Keywords

5G
Cartesian beamforming Architecture
LNA
millimetre-wave
VGA
wideband
wideband mmW-combining

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10.1109/ESSCIRC53450.2021.9567865

wideband_mmW_combiner_front_end_esscirc CopyAccepted author manuscript, 3.06 MB

Cite this

@inproceedings{69f759a576b54a0290f71c650fb8f2bb,

title = "A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture",

abstract = "Current millimetre-wave (mmW) 5G NR standard supports multiple bands at 24.5/28/37/39/43/47GHz for communications. To cover several bands of the 5G NR and reaching lower end of unlicensed 60GHz band for 802.11ad, this work presents a wideband phased array front-end with LNA and two VGAs for scalar-only weighting function, and a wideband combining network of each signal weight in mmW domain for beamforming. In this work, two array elements are combined in two cascaded stages for extremely wideband operation. Combined load resonances are distributed and adjusted appropriately in each of the combining stages to achieve a flat response over the band of 38.5-60.5GHz. A single array path achieves rms gain of 8.5-12.5dB, noise figure of 6.2-8.1dB, and IP1dB of -33 to - 26dBm. The measurements show ≈ 6dB of array gain when the two phased array elements are combined in phase with +0.6dB to -0.4dB maximum gain error in the mmW VGAs. The prototype is implemented using 28nm CMOS. ",

keywords = "5G, Cartesian beamforming Architecture, LNA, millimetre-wave, VGA, wideband, wideband mmW-combining",

author = "Rehman Akbar and Shaheen, {Rana A.} and Timo Rahkonen and Cheung Tze and Kari Stadius and Aarno Parssinen",

note = "Funding Information: ACKNOWLEDGMENT This research has been financially supported by Academy of Finland Ex5GRx (grant 2430226211) and also in part 6Genesis Flagship (grant 318927). Publisher Copyright: {\textcopyright} 2021 IEEE.; European Solid-State Circuits Conference, ESSCIRC ; Conference date: 06-09-2021 Through 09-09-2021",

year = "2021",

month = sep,

day = "13",

doi = "10.1109/ESSCIRC53450.2021.9567865",

language = "English",

pages = "199--202",

booktitle = "ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings",

publisher = "IEEE",

address = "United States",

}

Akbar, R, Shaheen, RA, Rahkonen, T, Tze, C , Stadius, K & Parssinen, A 2021, A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture. in ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. IEEE, pp. 199-202, European Solid-State Circuits Conference, Virtual, Online, France, 06/09/2021. https://doi.org/10.1109/ESSCIRC53450.2021.9567865

A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture. / Akbar, Rehman; Shaheen, Rana A.; Rahkonen, Timo et al.
ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. IEEE, 2021. p. 199-202.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

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AU - Rahkonen, Timo

AU - Tze, Cheung

AU - Stadius, Kari

AU - Parssinen, Aarno

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AB - Current millimetre-wave (mmW) 5G NR standard supports multiple bands at 24.5/28/37/39/43/47GHz for communications. To cover several bands of the 5G NR and reaching lower end of unlicensed 60GHz band for 802.11ad, this work presents a wideband phased array front-end with LNA and two VGAs for scalar-only weighting function, and a wideband combining network of each signal weight in mmW domain for beamforming. In this work, two array elements are combined in two cascaded stages for extremely wideband operation. Combined load resonances are distributed and adjusted appropriately in each of the combining stages to achieve a flat response over the band of 38.5-60.5GHz. A single array path achieves rms gain of 8.5-12.5dB, noise figure of 6.2-8.1dB, and IP1dB of -33 to - 26dBm. The measurements show ≈ 6dB of array gain when the two phased array elements are combined in phase with +0.6dB to -0.4dB maximum gain error in the mmW VGAs. The prototype is implemented using 28nm CMOS.

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M3 - Conference article in proceedings

AN - SCOPUS:85118441501

SP - 199

EP - 202

BT - ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings

PB - IEEE

T2 - European Solid-State Circuits Conference

Y2 - 6 September 2021 through 9 September 2021

ER -

A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture

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Extended Frequency Range Multi-Carrier Receiver

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A 38.5-to-60.5 GHz LNA with Wideband Combiner Supporting Cartesian Beamforming Architecture

Abstract

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Keywords

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Extended Frequency Range Multi-Carrier Receiver

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